Can-filling apparatus



E. J. GARRETT.'

CAN FILLING APPARATUS. APPLlcAloN man ocr. 13. 1919.

FIGJ

Patented Dec. 12, 1922.

2 SHEETS-SHEET l.

Eu EN JOHN ARRETT MA1/L ATTYs.

E. J. GARRETT.

' CAN FILLING APPARATUS.

APPLICATION FILED OCT. I3. I9I9- y Patented Deo. 12, 1922.

2 SHEETS-SHEET 2.

INvEHTR EUGENE JOHN GAR 4 j j i Patented Dec. l2, i922..

EUGENE JOHN GABRETT, OF BLUE XSLAND, LLNOIS.

CAN-FILLING APPARATUS. i

application filed October 13, 1919. Serial No. 330,160.

To all whom it may concern: a structure comprising a suitable framecon-V Be it known that l. EUGENEv JOHN GAR- sisting or standards 5 andcross-pieces 6. A nerr, a citizen of the Unitec States, residingvertical shaft Tis mounted centrally of and at Blue island, in thecounty of Cook and to rotate in the frame 'through the instru- 5` Stateoi illinois, have invented new and usementalities of bushings 8,8,provided, re- 60 ful improvements in Canflilling ppara-v spectively inand centrally of cross-pieces 6, tus, ot which the -following is aspecification. 6. The central shaft may be rotated by bev- My presentinvention relates to improveeled gears and lO, or in any other suitablements in canning machinery, and has espe' andy convenient manner. j cialreference to the provision ot devices i'or Secured to shaft 7 isja table1i. Inorder 65 iilling with liquid 'cans which are eitherA to make thistable vertically adjustable the empty or already contain articles `ofdivers Shaft is threaded, at 12, and a splitinteriorly sizesnecessitating the adding oi different threaded collar 13 is providedwhich enamounts oi liquid to the successive cans in gages, the-threadsupon the sha-'ft for sup- 15 order to till the cans to the proper levelfor porting table 11, and a split lock nut la, `70 receiving the top orclosure. which also coacts with the threads upon the The speciiicobjects ot my invention are, Shaft, screws down upon the top of thetable st, the provision of Simple mechanism for to hold 1t 1n adjustedposition. rlhe shaft securing the above results; second, the pro- 7 1s,preferably, splined or grooved throughvision of mechanism which willobviate the out-the threaded portion, and a` projection 75 necessity otraising or lowering the can prior @XtenClS from the table into thisspline-Way to and'especially after the filling operation S0 that thetable will be rotated with the which conduces to the slopping orspilling Shaft. ThlS table is provided with any suito the fluid 'fromthe can; and, third, the able projections, not shown, tor4 properlyprovision of mechanism which will retain POSl'lODlDg the CaIlS thereon..v

` the fluid in the tank of the machine if n Ata distance rabove thetable a tank 115 through inadvertence no can is in position 1S Soonledto shaft 7 in any suitable manner to receive fue Same, f v to rotatetherewith. The tank l5 can be of T he sealing mechanism is so designedthat ally desired form, such as circular, octagonal it will readily takecare or" the ordinary vao1' polygonal. Seoured'r to the periphery of 85ratons of heights in Containers, without tank l5 at suitable intervalsare'cylinders 1,` special adjustment, but have also provided (preferablyeight. in number) and ports .or exceedingly simple mechanism whereby thepaSSagoWayS 17 and 1S located, respectively machine can be readilyadjusted for connearthe bottom and top of the cylinders are tainers ofdivers heights, as will be hereplOvlCled for affording communication be.90

after seen. A further incidental accomplish tween the tank and therespective cylindersment of my device is that it is so designed The topport 18 is,` provided` so' that if that it will displace suthcientliquid so that through the operation of the mechanism the when thelilling operation is completed vthe level'oi: the liquid in thecylinderrises aloove 40 can will 'be properly filled for the topping orthat 1n the tank it may readily How back into 95 receiving ofv theclosure instead of having to the tank instead of overiiowing thecylinder.

drain ori" or remove material in order topro- The cylinders comprisehollow tubes Aopen vde loolfn recvng t0p y their tops bottoms t0` tll lattain the various objects of` my invenpassage therethrough of thestructure te be tion by means ot the structureillustrated in hereinafterdescribed. l .i

the accompanying drawings, in which-s Mounted to reciprocate within the.lower Figure l is a central vertical section of portion of cylinder 16is a piston-likestructhe mechanism embodying my invention. ture i9, openatthe top and having a tapped Figure 2 is a top plan of the mechanismand threaded bore centrally of its-bottom. j

5o shown in Figure l. The top of the piston-like structure `will al- 105Figure 3 is a detail in section or" the uid ways be lower than the upperreturn dispensing structure, drawn to alarger scale. port i8, and forthe rpurpose o'i perA lSimilar eference characters are employed mitting'the viiow of the fluid from port to designate similar parte throughoutthe l? to the g interior thereoil an elongated divers views. ldyinvention is embodied in opening or port 2O is provided which regis-2,10

ters with port 17 throughout the reciprocation of the piston.

A valve cage 2l is exteriorly threaded upon its lower portion andscrewed into the tapped bore of the piston, before mentioned. The upperportion or" the valve-cage is centrally bored, at 22, to torni a guideforthe valve stein, hereafter to bedescribed,y and j the 'lower portionof the valve cage is provided `with the enlarged bore 23 which `coniaretainingnut 28 screwed 'upon the lower eX- tended end of the valvecage. The lower edge of valve-cage 2l is7 preferably, beveled, at 29,'to forni a seat for a valve 30fcarriedupon the lowerend of a 'stem 3l,which extends upwardly through bore'22 of the valve cage and above thetop of cylinder 16. N ear theA top ofthe valve stem by nuts 32'issecured a colyso lar having a laterally extending arm A spring' 34positioned around the valve stein and between the top of the valve 'cageand the lower nut 32-maintains the valvenornially but yieldingly'inclosed position. The; Y outer end iol: the'lateral arin`33 is providedrwith a vertically disposed rod 35 which is guided in ahollowfembossmentB extended from the wall ofcylinder 16. rllhe rod 35 isprovided lwith, laterally elxteiiding stubs 37 Iand 38 whichextendthrough .a slot .'39

. in the side ofthe hollow einbossmentdand upon the ends of :the stubsare provided anti-friction rollers 4:0. Secured upon suitable bracketsdl extending from the verti-A cal members 5 ofthe frame isracircularcain track 42 which passes between the anti-frio- -tionrollersLiO of they stubs 37 and 38, here- 4totore described, and saidrollers engage, re-

spectively, the top and bottom of the circular cani-trackn rlhecani-'track secures Vits action through the instrumentality ofvertically inclined portions 43, which, when `en-V gaged by rollers 40will lower and elevate the guide rod 35 and ithe `valve stein 31assembled therewith, thus opening and closing valve 30. y

Between port 20 and the lower edge of the piston is an annular groove 44in which is mounted suitable, packing 45.

The operation oi my devices is as follows :--The rotation of shaft 7,together with table ll and tanlr l5 carried'therebywill securetherreciprocation of piston19`in the cylinder 16 through theinstrumentality of rthe circular cani track, rod 35. and stubs and 38.When the packing` or sealing gasket 9a7 comes in Contact. with the topof the container the further descent of piston 19 will be arrested, butthe-valve stem 3l through the compression of spring 34 continuesdownwardly, thereby unseating valve 30 andpermitting liquid to flow intothe container until the'latter is filled.y Upon the upward reciprocationof valve stein 3l 'g'asl'ret 27 is maintained in contact with the top of`container a through the action of spring' 3e until valve-30 is seatedwhen the further upward movement of valve stein 31 vwill elevate thevpiston thereby unseating gasket Q7 from the top' of the can andreleasing the can. 1

The size the projecting portion oit collar 28 and valve 30 is soproportioned that when it is withdrawn. from the can the can will not beoveriiowed, but willll't-e sutliciently i'ull to suitablyjreceive theclosure without thegnecessity oli' .removing Huid therefrom. 'From theforegoing description, talreiiin connection with the drawings, it willbe observed that-l have provided a simple 4mechanism for iillingcontainers with fluid `which may be adjusted for different sizes ofcontainers; which obviates the vertical nieve- -nient or shaking` or thecontainers atei'jthey have received vthe liquid; `which'automatically-tales care of ordinary diiierences in heights of containers; whichfills the` `containers just full enough but not too full; and which willnot operate to spill and waste the Huid when no container is in`position to receiveV the saine.

lWhat l claim as newvis :e y l l.l In acan lling-device, a uidcontainer,a cylinder having communication therewith, a piston reciprocable vwithinsaid cylinder, a valve mounted in the bottom of said piston, a stem onsaid valve having a `projection ,thereon,a spring interposed Ibetweensaid piston and the projection-.on said stem for Y yieldinglymaintaining said valve normally nieve-d to 'engage a container and thett'iirfther movement valve.

2. Fluid dispensing instrumentalities coinprising a cylinder, a hollowpiston reciprocable in said cylinder, said piston having'a port in oneend, a valve .controlling said port, a stem arising .therefroni,yielding means comprising a spring operating between said piston andsaid stem for -maintaining saidgvalve normally closed, and' means actingAthrough said stem Jor 'reciprocating it with said piston whereby saidvalvereinains closed until the forward'movement of said piston isarrested.

3. 'Fluid dispensing instrumentalities comprising a cylinder, a pistonreciprocable within saidk cylinder; said piston'having a porttherethrough, a valve controlling said port. a stem having a projectionarising troni said valve, a spring interposed between said of saiddevice unseats said piston and the 4projection on said stem, meansacting through said stem for reciprocating it With said piston, andsealing means carried by said piston for engaging a container.

4. n a can filling machine, a luid tank, and devices for controlling theflovv of fluid therefrom to the can to be filled comprising a cylinderin communication With said tank, ahollow piston reciprocable in saidcylinder having a port in one end, a valve for controlling said port, astem arising from said valve, a spring operating between said stem andsaid piston for maintaining said valve in normally closed position, anelement carried by said piston adapted to seal the can to be lled, andmeans co-acting With said stem whereby said piston is moved to seal thecan and the further movement o'l said means open said Valve.

A can filling machine comprising a fluid tank, a cylinder incommunication With said tank, a piston reciproeable in said cylinder andhaving a discharge port, a can sealing member surrounding said port, avalve seated insaid port having a stem eX- tended outside said cylinder,an actuating rod connected to said valve stem and having laterallyprojecting members, a camtrack positioned between said lateral members,and means for causing a relative movement between said tank and camtrack.

6. A can filling machine comprising a rotatable {iuid tank, a cylinderin communication with said tank, a piston reciprocable in said cylinderand having a discharge port, a can sealing member' surrounding saidport, a valve seated in said port having a stem extending outside o saidcylinder, an actuating rod vconnected tosaid valve stem and havinglaterally projecting members, a stationary cam track positioned betweensaid lateral members, and means tor rotating said tank whereby said camtrack is caused to move saidlateral members and thereby seal the can tobe illed and open said valve.

Signed at Chicago, County of Cook, and State of Illinois, this 3d day ofCctober 1919.

EUGENE JOHN GARRETT. Witnesses:

E. K. LUNDY, Jr.

FLORENCE MITCHELL.

